Here is another do-ahead appetizer that is filling my freezer.
Saute mushrooms (I used baby bellas) in a little olive oil with salt, pepper, and a few red pepper flakes. Drain.
Brown Italian sausage (I used half regular, and half hot), and drain. Mix with the mushrooms.
Roll out thawed puff pastry dough (two sheets), and cut one of the sheets into thirty 3" squares.
Place a teaspoon on sausage mushroom filling on each square. Top with a little herbed goat cheese.
Fold corners to the center diagonally (like an envelope). From second sheet of pastry, cut thirty 1 1/2 " squares. Brush small squares with a mixture of two egg yolds and 2 T. cream. Place brushed side down on each sausage square. Press to seal. Repeat with any remaining dough.
Flash freeze appetizers for an hour or (overnight), and freeze until ready to bake. Bake frozen at 400 for 15-20 minutes until golden.
I don't know what they look like baked yet, but I made five sheets of pastry. With the sixth sheet of dough, and my leftover filling, I made us two calzones for dinner. THEY were just delicious!